diff --git a/src/MiniDocs/HedgeDoc.class.st b/src/MiniDocs/HedgeDoc.class.st
index a621c92..ae68293 100644
--- a/src/MiniDocs/HedgeDoc.class.st
+++ b/src/MiniDocs/HedgeDoc.class.st
@@ -7,11 +7,10 @@ notebook or viceversa.
 "
 Class {
 	#name : #HedgeDoc,
-	#superclass : #Object,
+	#superclass : #Markdown,
 	#instVars : [
 		'server',
 		'pad',
-		'contents',
 		'url'
 	],
 	#category : #'MiniDocs-Core'